.middle {
    margin: 50px 0;
    display: flex;
    justify-content: center;

}

.middle > div {
    width: 1000px;
    border: 1px solid red;
}

.middle > div > div:nth-child(1) {
    display: flex;
    justify-content: space-between;
}

.middle > div > div:nth-child(1) > div:nth-child(2) {
    display: flex;
    align-items: center;
}

.middle > div > div:nth-child(1) > div:nth-child(2) > div {
    background-color: rgb(243, 243, 243);
    line-height: 61px;
    padding: 0 30px;
}

.middle > div > div:nth-child(1) > div:nth-child(2) > div:hover {
    background-color: rgb(230, 144, 57);
    color: white;
    cursor: pointer;
}

.middle > div > div:nth-child(1) {
    border-bottom: 1px solid red;
}

/*-----------------------产品内容---------------*/
.middle > div > div:nth-child(2) {
    padding: 10px;
}

.content {
    display: flex;
    flex-wrap: wrap;
}

.content > div {
    /*border: 1px solid red;*/
    width: 220px;
    /*margin-right: 20px;*/
    color: gray;
    margin: 10px;
}

.content > div > div:nth-child(1) {
    width: 220px;
    height: 150px;
    font-weight: bold;

}

.content > div > div:nth-child(1) img {
    width: 100%;
    height: 100%;
}

.content > div > div:nth-child(2) {
    font-weight: bold;
    color: black;
}

.content > div > div:nth-child(3) {
    display: flex;
}

.content > div > div:nth-child(3) > div:nth-child(2) {
    color: red;
}

.content > div > div:nth-child(4) {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}